The info engine produces GNU Info files for on-line
browsing with GNU Emacs or with the stand-alone Info reader of GNU Texinfo.

For each chapter, section, etc.,
an Info node is created, whose name is inferred from the :title
option. However, Info node names have to be unique, which the :title options are not necessarily. Thus, the Info engine does two
things:

It warns you about duplicate Info node titles.

It allows you to choose a different node name to avoid
conflicts, using the :info-node option of chapter, etc.

Most markups shown in Chapter 3 are
meaningfully rendered in Info, including tables. The image markup is also implemented: the Info reader in Emacs 23 and
later is able to display them, or to display the alternate text (the
body of the image markup) when running in text mode.